修改套餐商品流量大小默认为1的字段

src/views/tariffManagement/SetMeal/addSetMeal.vue

@@ -111,8 +111,8 @@ const state = ref({
         price: "",
         currency: "",
         trafficId: "",
-        flow: "1",
-        flowUnit: "",
+        flow: "",
+        flowUnit: "1",
         id:"",
     },
     formRef: null,